Background: Assessment of intelligence and executive function (EF) is common in complex neuropsychiatric practice. Although previous studies have shown that EF and intelligence are related, it is unknown whether these constructs relate to one another in a similar manner across different ability groups (mild intellectual disability, borderline…

Background: There is no study to date that has examined the association between history of abuse and adaptive functioning deficits in youth with co-occurring and psychotic disorders or mood disorders. Method: This study used a retrospective chart review of 98 youth under the age of 18 (Mean age = 16.06 years) with co-occurring intellectual…

Background: Prader-Willi syndrome (PWS) is a rare genetic disorder characterised by developmental abnormalities leading to somatic and psychological symptoms. These include dysmorphic features, impaired growth and sexual maturation, hyperphagia, intellectual delay, learning disabilities and maladaptive behaviours. PWS is caused by a lack of…

Utilized time-saving Wechsler Adult Intelligence Scale (WAIS) scoring procedures in two ex post facto investigations following approaches outlined by Vincent (1979) and Himelstein (1983). Results indicated high correlation between the Vincent and Himelstein approaches and WAIS Verbal, Performance, and Full Scale IQs while maintaining integrity of…

The test-retest IQs of 50 patients were correlated. The patients were included in the sample only because they had been given the Wechsler Adult Intelligence Scale before. The interval between test and retest averaged almost two years. All test-retest correlations were .90 or better. (Author)

A regression equation relating verbal and full-scale IQs was derived from scores of patients. Scores were highly correlated, and verbal IQ significantly exceeded full-scale IQ. Regression estimates closely estimated mean full-scale IQ, suggesting that the verbal scale serves effectively as a WAIS abbreviation. (Author)

The validity of the Verbal IQ as a short form of the Wechsler Adult Intelligence Scale (WAIS) was investigated using the criteria proposed by Resnick and Entin. The WAIS was administered to 100 psychiatric patients. There was no significant difference between the means of the Verbal and Full Scale IQs. (Author)

Eight-seven adult outpatients in Edinburgh (Scotland) were tested with the Wechsler Adult Intelligence Scale--Revised (WAIS-R) and a test of visual inspection time (IT). Factor analysis confirms that IT correlates more strongly with performance than with verbal intelligence quotient (IQ) scores. Implications for the study of IT and mental tests…

Analysis of correlations between Verbal and Full Scale IQ scores for 231 high-IQ psychiatric outpatients indicated that Verbal IQ appears partially valid as a WAIS short form for this higher IQ group. Results are interpreted in terms of Resnick and Entin's short form validity criteria. (Editor/SJL)

The predictive power of the short-form Wechsler Adult Intelligence Scale of P. Satz and S. Mogel to provide equivalent information about IQ scores and age-corrected scale scores was not differentially affected by the side of the lesion for 63 patients with brain tumors. (SLD)

Background: Childhood onset schizophrenia (COS) is a rare disorder. Comparative data on the effect of differential age of onset on clinical profile in schizophrenia are very few. Method: Subjects with COS (n = 15), adolescence onset schizophrenia (AdOS, n = 20) and adulthood onset schizophrenia (AOS, n = 20) were compared on socio-demographic,…